Check with your tax professional about your ability to deduct the interest on a HELOC from your taxable income.2.

Did you have taxable income that could’ve been reduced utilizing tax strategies?

2) wouldn't the interest be taxable to seller?

Start by educating yourself with foundational books like The Millionaire Real Estate Investor and practicing deal analysis using tools like BiggerPockets calculators.

Upon sale, gains are taxed as long-term capital gains, calculated as the sale proceeds minus your adjusted basis (initial investment reduced by any return of capital).

@Will Almand A cost segregation (cost seg) study can accelerate depreciation on your properties, reducing taxable income by reclassifying components (e.g., appliances, HVAC) into shorter-lived categories.

I recently signed up for BP and found the calculators on this site to be very helpful.  

Quote from @Avani Patel: Hello, it is really time consuming for me to analyze each property by manually entering its data to calculate the return. 

Additionally, I created MEC (Material Estimator Calculator), a unique residential renovation software that automatically calculates a bill of materials (BOM) based on the property’s condition.Overall, I’m thrilled to escape the Seattle rain and connect with fellow investors here in Arizona.

If you do so - 100% of the cash converted is taxable.